and earlier this month, a woman was killed and her daughter-in-law seriously hurt when a driver hit them as they walked along a sidewalk in walnut creek. they are scenes that have police sending out warnings. >> watching your speed, paying attention to your surroundings and not being distracted by any of your electronic devices. and just the bottom line is paying attention. >> reporter: the cause of today's crash is still under investigation. and while the victims are expected to recover, those who witnessed it are rattled. they say drivers need to be more careful. >> just drive slowly. just take it easy. >> reporter: we are back here live where you can see some of the damage that remains out here tonight. both a nail salon and an art gallery were hit by the cars. now five of the six victims we are told received minor injuries, while one person, a woman, a pedestrian that was struck here received serious injuries. again, the cause of this crash is still under investigation. reporting live in downtown oakland, i'm jodi hernandez, nbc bay area news. >> jodi, thank you. >>> across the bay n